An antigen triggers a response from the immune system and an antibody is produced. All antibodies are immunoglobulins, therefore, the correct answer is immunoglobulin. More specifically, an immunoglobulin is a protein produced by plasma cells to fight and neutralize pathogens. To do so, the immunoglobulin has a specific region which is complementary to a specific region of the antigen. Immunoglobulin's mechanism of action is to bind to the pathogen and either block its action or trigger a response of other cells of the immune system.
It is B, it could also be D, but it is most likely B. Hope this helps.
If a light is traveling straight up out of the ocean, then moves out of the air it will become less refracted because it is moving to a far less-dense medium, meaning the image will not be distorted.
Traits controlled by genes can only be acted upon natural selection because they have to helpful to the survival of that organism.
Answer:
Nitrate
Nitrate is the form of nitrogen most used by plants for growth and development. Nitrate is the form that can most easily be lost to groundwater. Ammonium taken in by plants is used directly in proteins. This form is not lost as easily from the soil.
Explanation:
